JP2601136Y2 - Power supply - Google Patents
Power supplyInfo
- Publication number
- JP2601136Y2 JP2601136Y2 JP1993063500U JP6350093U JP2601136Y2 JP 2601136 Y2 JP2601136 Y2 JP 2601136Y2 JP 1993063500 U JP1993063500 U JP 1993063500U JP 6350093 U JP6350093 U JP 6350093U JP 2601136 Y2 JP2601136 Y2 JP 2601136Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- rectangular
- rectangular piezoelectric
- fixture
- long side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は矩形形状圧電素子を利用
した電源装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device using a rectangular piezoelectric element.
【０００２】[0002]
【従来の技術】矩形形状圧電素子を利用した電源は巻線
を必要とせず簡単な構造で大きな昇圧比が得られ、特に
高インピーダンス負荷に対して高電圧を供給するのに適
している。また、セラミックである圧電素子を利用して
いることから不燃性であり、プレーンペーパーコピー
（ＰＰＣ）、レーザービームプリンター（ＬＢＰ）およ
び液晶装置のバックライト等に有用である。2. Description of the Related Art A power supply using a rectangular piezoelectric element does not require a winding, has a simple structure, can provide a large boosting ratio, and is particularly suitable for supplying a high voltage to a high impedance load. Further, it is nonflammable due to the use of a ceramic piezoelectric element, and is useful for a plain paper copy (PPC), a laser beam printer (LBP), a backlight of a liquid crystal device, and the like.
【０００３】従来の矩形形状圧電素子を図３に示す。矩
形形状圧電素子１は板状の形状をしており、矩形形状圧
電素子１の長手方向の一端側の半分は入力部２として厚
さ方向（矢印Ｐ）に、また他端側の半分は出力部３とし
て長手方向（矢印Ｑ）に分極される。入力部２の厚さ方
向に対向する二表面には一対の入力電極４Ａ、４Ｂが、
また出力部３の長手方向の端面には出力電極５が形成さ
れる。入力電極４Ａ，４Ｂは駆動信号源６に接続され、
出力電極５にはリード線７が接続される。昇圧された出
力電圧は、リード線７とアース間より取り出される。FIG. 3 shows a conventional rectangular piezoelectric element. The rectangular piezoelectric element 1 has a plate-like shape. One half of one end in the longitudinal direction of the rectangular piezoelectric element 1 is used as an input unit 2 in the thickness direction (arrow P), and the other half is output. The portion 3 is polarized in the longitudinal direction (arrow Q). A pair of input electrodes 4A and 4B are provided on two surfaces of the input unit 2 facing each other in the thickness direction.
An output electrode 5 is formed on an end face of the output section 3 in the longitudinal direction. The input electrodes 4A and 4B are connected to the drive signal source 6,
A lead wire 7 is connected to the output electrode 5. The boosted output voltage is taken out between the lead wire 7 and the ground.
【０００４】次に、この矩形形状圧電素子１の動作につ
いて説明する。駆動信号電源６によって、入力電極４
Ａ，４Ｂの間に交流電圧を加えると圧電効果によって、
矩形形状圧電素子１に機械的振動が発生する。この機械
的振動を発生させるために印加する交流の周波数が、矩
形形状圧電素子１の長さと材料によって決まる機械的共
振周波数にほぼ一致すると共振がおこり、定常波が発生
する。この条件として、全波長共振の振動モード、半波
長共振の振動モード等が知られている。その結果、矩形
形状圧電素子１の出力部３においては、増幅された歪に
よる圧電効果によって電界分布ができ、出力電極５には
昇圧された出力電圧が得られる。Next, the operation of the rectangular piezoelectric element 1 will be described. The drive signal power supply 6 allows the input electrode 4
When an AC voltage is applied between A and 4B, the piezoelectric effect
Mechanical vibration occurs in the rectangular piezoelectric element 1. When the frequency of the alternating current applied to generate the mechanical vibration substantially matches the mechanical resonance frequency determined by the length and the material of the rectangular piezoelectric element 1, resonance occurs, and a standing wave is generated. As this condition, a vibration mode of full-wave resonance, a vibration mode of half-wave resonance, and the like are known. As a result, in the output section 3 of the rectangular piezoelectric element 1, an electric field distribution is generated by the piezoelectric effect due to the amplified distortion, and a boosted output voltage is obtained at the output electrode 5.
【０００５】なお、出力部３においては、入力電極４
Ａ、４Ｂの端部から出力電極５に向かうにつれて発生電
圧はリニアに増加し出力電極５で最大電圧となる。In the output section 3, the input electrodes 4
The generated voltage increases linearly from the ends of A and 4B toward the output electrode 5 and reaches the maximum voltage at the output electrode 5.
【０００６】次に、図４に矩形形状圧電素子１の従来の
保持方法を示す。矩形形状圧電素子１の振動節部位置に
は、直方体形状の取付具８が取付られている。取付具８
には、対向する短辺方向の両側面を貫通する、矩形形状
圧電素子１を嵌入するための貫通孔９が設けられる。な
お、取付具８は、絶縁性を有し、かつ矩形形状圧電素子
１の振動を阻害することがないよう弾性率の高いゴム等
で作られる。また成型品である基板１０上には、溝１１
を側面に有す一対のコ字状の立設部１２が、溝１１を対
向するように一体に配置されている。溝１１は、取付具
８の短辺と同じ幅である。この対向する溝１１の間に取
付具８を挿嵌し、矩形形状圧電素子１を保持する。Next, FIG. 4 shows a conventional method for holding the rectangular piezoelectric element 1. A rectangular parallelepiped mounting member 8 is mounted at a vibration node position of the rectangular piezoelectric element 1. Fixture 8
The penetrate the both side surfaces in the short side direction opposite the through-hole 9 for fitting the rectangular piezoelectric element 1 is Ru provided. What
The attachment 8 is made of rubber or the like having an insulating property and a high elastic modulus so as not to hinder the vibration of the rectangular piezoelectric element 1. A groove 11 is formed on a substrate 10 which is a molded product.
A pair of U-shaped upright portions 12 having side surfaces are integrally arranged so as to oppose the groove 11. The groove 11 has the same width as the short side of the fixture 8. The fixture 8 is inserted between the opposed grooves 11 to hold the rectangular piezoelectric element 1.
【０００７】[0007]
【考案が解決しようとする課題】このような従来の保持
方法では、矩形形状圧電素子１を基板１０の上に配設す
るため電源装置全体の厚みが厚くなり、矩形形状圧電素
子１の薄さを生かしていなかった。In such a conventional holding method, since the rectangular piezoelectric element 1 is disposed on the substrate 10, the thickness of the entire power supply device is increased, and the thickness of the rectangular piezoelectric element 1 is reduced. Was not alive.
【０００８】そこで本考案は、全体の厚みが薄い電源装
置を提供することを目的とする。Accordingly, an object of the present invention is to provide a power supply device having a small overall thickness.
【０００９】[0009]
【課題を解決するための手段】本考案は上記目的を達成
するために、次のように構成される。矩形形状圧電素子
と、該矩形形状圧電素子に取付られる取付具と、前記矩
形形状圧電素子を配設する長方形の開口部を設けたプリ
ント基板とからなり、前記取付具の長辺方向両端に短辺
方向に延びる溝を設け、前記開口部の各長辺のそれぞれ
には少なくとも一個の凹部を形成するとともに、一方の
長辺に形成された凹部と他方の長辺に形成された凹部と
を対向して設け、前記取付具を対向する前記凹部に装着
する。The present invention is configured as follows to achieve the above object. A rectangular piezoelectric element, a fixture attached to the rectangular piezoelectric element, and a printed circuit board having a rectangular opening for disposing the rectangular piezoelectric element. A groove extending in the side direction is provided, and at least one recess is formed in each of the long sides of the opening, and one of the long sides is formed.
A concave portion formed on the long side and a concave portion formed on the other long side
The opposed, mounted in the recess facing the fitting.
【００１０】[0010]
【作用】プリント基板の開口部の各長辺のそれぞれには
少なくとも一個の凹部が形成され、一方の長辺の凹部と
他方の長辺の凹部は対向する。矩形形状圧電素子には、
取付具が取付けられる。取付具の長辺方向の両側面に設
けられた溝は、対向して形成された凹部に係合され、矩
形形状圧電素子がプリント基板の開口部に装着される。 [Function] Each of the long sides of the opening of the printed circuit board is
At least one recess is formed, and a recess on one long side is formed.
The recesses on the other long side face each other. For a rectangular piezoelectric element,
The fixture is attached. Install on both sides in the long side direction of the fixture.
The cut groove is engaged with the recess formed oppositely, and the rectangular groove is formed.
The shape-shaped piezoelectric element is mounted in the opening of the printed circuit board.
【００１１】[0011]
【実施例】図１に本考案の矩形型圧電素子１を利用した
電源装置の分解斜視図を示す。なお、矩形型圧電素子１
は従来例と同じなため説明を省略し、従来例と同じ番号
を使用する。FIG. 1 is an exploded perspective view of a power supply device using a rectangular piezoelectric element 1 according to the present invention. The rectangular piezoelectric element 1
Are the same as in the conventional example, and the description is omitted, and the same numbers as in the conventional example are used.
【００１２】電源装置は、矩形形状圧電素子１と、プリ
ント基板１３と、矩形形状圧電素子１をプリント基板１
３に装着するための取付具１４とから構成される。The power supply device includes a rectangular piezoelectric element 1, a printed circuit board 13, and a rectangular piezoelectric element 1 connected to the printed circuit board 1.
3 and a mounting member 14 to be mounted on the mounting member 3.
【００１３】プリント基板１３は、長方形の開口部１５
を有し、開口部１５の両方の長辺には複数の凹部１６が
それぞれ形成され、一方の長辺に形成された凹部１６と
他方 の長辺に形成された凹部１６とが対向するように配
置される。プリント基板１３の他の場所には、例えば発
振回路、制御回路、整流回路等を構成する部品（図示せ
ず）が実装されている。The printed circuit board 13 has a rectangular opening 15.
And a plurality of recesses 16 are provided on both long sides of the opening 15.
And a recess 16 formed on one of the long sides.
Arranged so that the recess 16 formed on the other long side faces the other.
Is placed . In other places of the printed circuit board 13, components (not shown) constituting, for example, an oscillation circuit, a control circuit, a rectification circuit, and the like are mounted.
【００１４】取付具１４は直方体形状で、長辺方向の両
側面にはプリント基板１３に係止するための溝１７が、
取付具１４の短辺方向に延びるように設けられる。ま
た、取付具１４に矩形形状圧電素子１を取付るため、例
えば取付具１４の短辺方向の両側面を貫通する貫通孔１
８が設けられる。溝１７の幅Ｌ１は、プリント基板１３
の厚みＬ２と同じである。また、取付具１４の短辺長さ
Ｌ３は、凹部１６の幅Ｌ４と同じである。更に取付具１
４の長辺方向の両側面に設けた溝１７間の長さＬ５は開
口部１５の凹部１６間の距離Ｌ６と同じである。取付具
１４は、絶縁性を有し、かつ矩形形状圧電素子１の振動
を阻害することがないよう弾性率の高いゴム等で作られ
る。The mounting member 14 has a rectangular parallelepiped shape, and has grooves 17 for locking to the printed circuit board 13 on both side surfaces in the long side direction .
The attachment 14 is provided so as to extend in the short side direction. Also, since the rectangular piezoelectric element 1 is attached to the fixture 14, an example
For example, a through hole 1 penetrating both side surfaces in the short side direction of the fixture 14
8 are provided. The width L1 of the groove 17 is
Is the same as the thickness L2. Further, the short side length L3 of the fixture 14 is the same as the width L4 of the recess 16. Further mounting fixture 1
The length L5 between the grooves 1 7 provided on both sides of the longitudinal direction of the 4 is the same as the distance L6 between the recesses 16 of the opening 15. The attachment 14 is made of rubber or the like having an insulating property and a high elastic modulus so as not to hinder the vibration of the rectangular piezoelectric element 1.
【００１５】図２は、矩形形状圧電素子１の振動節部が
二つある全波長の振動モードにおいて、取付具１４を振
動節部二箇所に取付た場合を示す。FIG. 2 shows a case in which the fixture 14 is attached to two vibrating nodes in the vibration mode of all wavelengths in which the rectangular piezoelectric element 1 has two vibrating nodes.
【００１６】取付具１４を矩形形状圧電素子１の振動節
部に取付後、取付具１４の長辺方向の端部をプリント基
板１３の対向する凹部１６に挿入する。溝１７はプリン
ト基板１３と係合する。また取付具１４の長辺方向の両
端は凸部１９よって挟持され、開口部１５の長辺方向へ
の位置ずれが防止される。このように矩形形状圧電素子
１は、プリント基板１３の開口部１５内にプリント基板
１３と接触することなく保持される。After the attachment 14 is attached to the vibrating node of the rectangular piezoelectric element 1, the end of the attachment 14 in the long side direction is inserted into the opposing recess 16 of the printed circuit board 13. The groove 17 engages with the printed circuit board 13. Further , both ends in the long side direction of the mounting fixture 14 are sandwiched by the convex portions 19, thereby preventing displacement of the opening 15 in the long side direction. Thus, the rectangular piezoelectric element 1 is held in the opening 15 of the printed circuit board 13 without contacting the printed circuit board 13.
【００１７】電極４Ａ、４Ｂにはリード線を半田付けす
るか、あるいは取付具１４を入力部２の振動節部位置に
嵌入した場合には、取付具１４と電極４Ａ、４Ｂの間に
導体を介在させその導体にリード線を接続する。When a lead wire is soldered to the electrodes 4A and 4B, or when the fixture 14 is fitted into the vibration node position of the input unit 2, a conductor is provided between the fixture 14 and the electrodes 4A and 4B. The lead wire is connected to the conductor by interposing.
【００１８】出力電圧は、矩形形状圧電素子１の出力部
３の出力電極５にリード線を半田付けして取り出す。ま
た、取付具１４を出力部３の振動節部位置に取付た場合
には導電性の取付具１４を用い、この取付具１４とプリ
ント基板１３の凹部１６に形成したプリント配線と接続
して取り出してもよい。この場合、取付具１４の材質と
して、矩形形状圧電素子１が共振する際の動きを阻害す
ることがないよう弾性率の高い導電性ゴム等を使用す
る。The output voltage is obtained by soldering a lead wire to the output electrode 5 of the output section 3 of the rectangular piezoelectric element 1. When the mounting member 14 is mounted at the position of the vibration node of the output section 3, a conductive mounting member 14 is used, and the mounting member 14 is connected to the printed wiring formed in the recess 16 of the printed circuit board 13 and taken out. You may. In this case, as the material of the attachment 14, a conductive rubber or the like having a high elastic modulus is used so as not to hinder the movement of the rectangular piezoelectric element 1 at the time of resonance.
【００１９】また、複数の出力電圧を取り出す場合に
は、矩形形状圧電素子１の出力部３に取付られた導電性
ゴムでできた出力電圧取出具（図示せず）にリード線を
からげて取り出しても良い。出力電圧取出具は直方体形
状で、長辺長さは開口部１５の長辺と接触しないために
対向する凸部１９の距離Ｌ７より短くする。また短辺方
向の両側面には出力部３に取り付けるための貫通孔が設
けられる。When a plurality of output voltages are to be extracted, a lead wire is wrapped around an output voltage extractor (not shown) made of conductive rubber attached to the output section 3 of the rectangular piezoelectric element 1. You may take it out. The output voltage extractor has a rectangular parallelepiped shape, and the length of the long side is shorter than the distance L7 of the facing convex portion 19 because it does not contact the long side of the opening 15. Also on the short side
Through holes for attaching to the output unit 3 are provided on both side surfaces in the direction .
【００２０】[0020]
【考案の効果】本考案は上述のように構成されるので、
矩形形状圧電素子１は取付具１４によってプリント基板
１３とほぼ同じ平面に固定される。そのため、矩形形状
圧電素子１を利用した電源装置を薄くすることができ
る。また、振動モードを変えて使用する際は、矩形形状
圧電素子１の振動節部位置へ取付具１４を移動させ、複
数の凹部１６のうち最適位置の対向する凹部を使用して
係止することができる。[Effects of the Invention] Since the present invention is configured as described above,
The rectangular piezoelectric element 1 is fixed on the same plane as the printed circuit board 13 by the fixture 14. Therefore, the power supply device using the rectangular piezoelectric element 1 can be made thin. When the vibration mode is changed, the fixture 14 is moved to the vibration node position of the rectangular piezoelectric element 1 and locked by using the opposing concave part at the optimum position among the plural concave parts 16. Can be.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本考案のオンボード型高電圧発生装置の分解斜
視図である。FIG. 1 is an exploded perspective view of the on-board type high voltage generator of the present invention.
【図２】本考案のオンボード型高電圧発生装置の組立図
である。FIG. 2 is an assembly view of the on-board type high voltage generator of the present invention.
【図３】従来の圧電トランスの概略図である。FIG. 3 is a schematic view of a conventional piezoelectric transformer.
【図４】従来の圧電トランス電源の分解斜視図である。FIG. 4 is an exploded perspective view of a conventional piezoelectric transformer power supply.
１ 矩形形状圧電素子 ２ 入力部 ３ 出力部 ４Ａ、４Ｂ 入力電極 ５ 出力電極 ８ 取付具 １０ 基板 １１ 溝 １２ 立設部 １３ プリント基板 １４ 取付具 １５ 開口部 １６ 凹部 １７ 溝 １８ 貫通孔 １９ 凸部 DESCRIPTION OF SYMBOLS 1 Rectangular piezoelectric element 2 Input part 3 Output part 4A, 4B Input electrode 5 Output electrode 8 Attachment 10 Substrate 11 Groove 12 Standing part 13 Printed circuit board 14 Attachment 15 Opening 16 Depression 17 Groove 18 Through hole 19 Convex part
Claims (1)
子に取付られる取付具と、前記矩形形状圧電素子を配設
する長方形の開口部を設けたプリント基板とからなり、
前記取付具の長辺方向両端に短辺方向に延びる溝を設
け、前記開口部の各長辺のそれぞれには少なくとも一個
の凹部を形成するとともに、一方の長辺に形成された凹
部と他方の長辺に形成された凹部とを対向して設け、前
記取付具を対向する前記凹部に装着したことを特徴とす
る電源装置。A rectangular-shaped piezoelectric element, a fixture attached to the rectangular-shaped piezoelectric element, and a printed circuit board provided with a rectangular opening for disposing the rectangular-shaped piezoelectric element;
Grooves extending in the short side direction are provided at both ends in the long side direction of the mounting fixture, and at least one recess is formed in each of the long sides of the opening, and the recess formed in one long side is formed.
A power supply device, wherein a portion and a concave portion formed on the other long side are provided to face each other, and the mounting tool is mounted in the concave portion facing the other .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993063500U JP2601136Y2 (en) | 1993-11-26 | 1993-11-26 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993063500U JP2601136Y2 (en) | 1993-11-26 | 1993-11-26 | Power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0732972U JPH0732972U (en) | 1995-06-16 |
| JP2601136Y2 true JP2601136Y2 (en) | 1999-11-08 |
Family
ID=13231023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993063500U Expired - Lifetime JP2601136Y2 (en) | 1993-11-26 | 1993-11-26 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2601136Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001210892A (en) * | 2000-01-27 | 2001-08-03 | Murata Mfg Co Ltd | Mounting structure of piezoelectric transformer |
| JP5692580B2 (en) * | 2011-02-02 | 2015-04-01 | 横河電機株式会社 | Piezoelectric transformer |
-
1993
- 1993-11-26 JP JP1993063500U patent/JP2601136Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0732972U (en) | 1995-06-16 |
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